39results about How to "Avoid Data Transfer Errors" patented technology

An ARQ system and method for a BWA communication system are provided. A transmitter activates an ARQ timer if exist transmission data or retransmission data and transmits the transmission data or the retransmission data to a receiver. The transmitter then receives a response signal for the transmitted data or the retransmitted data and stops the ARQ timer in the not exist of transmission data.

The invention relates to a terminal self-adaption system and a self-adaption method of an access address for home services, which take a home service system as a basis. The terminal self-adaption method of the access address comprises the steps that: a back position detection server sends a position prompt message to a mobile terminal entering a back data communication network; the mobile terminal receives the position prompt message, searches a terminal database server, judges whether the mobile terminal enters the back data communication network or not, and acquires an access address of a back processing server; the mobile terminal sends an address change notification message to a preceding processing server through a preceding data communication network; the preceding processing server sends an address change confirmation message to the mobile terminal; and the mobile terminal receives the confirmation message sent by the preceding processing server and switches to the back processing server. The terminal self-adaption system and the terminal self-adaption method of the access address for home services can realize automatic changes of the access address of a service center.

The invention relates to a method for designing and realizing a protocol conversion function of a substation. Configuring the ID mapping table of the virtual IED under the IEC60870-5-103 protocol channel; the proxy IED is created in the IEC60870-5-103 protocol to realize the mapping relationship with the virtual IED; the proxy IED data transmission module is constructed in the IEC60870-5-103 protocol to realize the actual protocol data transmission with the monitoring system; when the IEC60870-5-103 specification is designed, the module is distributed, and the communication data between the monitoring system and the on-site IED is periodically distributed to the proxy IED for processing; realize the data transmission in the protocol conversion process. The invention avoids the configuration of the sending table or the information point table, which reduces the occupancy of data resources, data transfer errors caused by misconfiguration of the send table can be avoided, it greatly improves the transmission efficiency, satisfies the data collection and monitoring of different field IEDs in the substation, realizes the unification and compatibility of communication protocol and communication mode, and is conducive to the interchangeability and interoperability of equipment in the substation automation system.

An image processing apparatus, which transmits image data to a plurality of addresses via a network, includes a transmission device which transmits the image data to an address in the plurality of addresses, an address setting device which sets at least one of the plurality of addresses, a determining device which determines, with respect to each of the at least one of the plurality of addresses, whether or not to transmit the image data thereto on the basis of an attribute thereof, and a display device which displays a first address among the plurality of addresses to which the determining device determines to transmit the image data, and a second address among them to which the determining device determines not to transmit the image data on the same screen, in different manners from each other.

The present invention relates to a lingering protection system and method of a local service access address, which is based on a local service system, and includes the following steps: a mobile terminal connected to a prior processing server has access to a post processing server Requirements, the prior processing server obtains the access address data of the post-processing server; the prior processing server starts a slow process; after the slow process ends, the prior processing server judges the address of the post-processing server of the mobile terminal Whether the access address has changed; the prior processing server judges whether the new access address of the mobile terminal is the access address of the prior processing server; if the new access address is the prior processing server’s An access address, if the new access address is the access address of the third processing server. The present invention provides a retention protection system and method for a territorial service access address, which can realize automatic and effective modification of a service center access address.

The method and circuit provide an effective implementation to handle the data transferring problem between multiple clock domains. A shift circuit shifts the incoming data stream and a sampling module sequentially samples and outputs each signal in the first group signals and the second group signals by the N sampling pulses with a sequence.

The embodiment of the invention, which relates to the wireless communication technology field, discloses an information notification and timing advance (TA) obtaining method, a system and equipment thereof. The method, the system and the equipment are used to solve a problem that how a terminal acquires the TA used in uplink transmission on a new added cell when a polymerization cell is added for the terminal. In the invention, the method is characterized in that: a base station sends information which carries a message that whether uplink TAs of a plurality of cells are the same to the terminal; the terminal determines whether the uplink TA of the new added cell configured by the base station for the terminal is the same with the uplink TA of a current service cell TA of the terminal; if the uplink TAs are the same, the current service cell TA is acquired and the TA is taken as the TA used in the uplink transmission performed in the new added cell; otherwise, through initiating a random access process, the TA used in the uplink transmission performed in the new added cell is obtained. Therefore, by using the method, the system and the equipment of the invention, the terminal can obtain the TA used in the uplink transmission performed on the new added cell.

The invention discloses an institute of electronic and electrical engineers (IEEE) 1394 and universal plug and play (UPnP) technology-based remote control and access method and an IEEE1394 and UPnP technology-based remote control and access device. According to the device, a UPnP over 1394 module is added between a UPnP stack module and a 1394 communication module, and is used for realizing seamless connection between 1394 equipment and a UPnP control point. According to the method, after a bus is reset, a memory address of the 1394 equipment is scheduled and managed in a unified way, mapping between a hardware address of the 1394 equipment and an identity (ID) number of a node is acquired through an address resolution protocol (ARP), the 1394 equipment is discovered, a service description document of the 1394 equipment is generated, the control information state of the control point is stored for failure analysis, and a buffer control module and a quality of service (QoS) control module are used for ensuring isochronous video stream transmission and quality of service. Bridge equipment address conflict and waste are prevented, and a remote access failure caused by the variation of the ID number of the node is avoided, and the method and the device have failure diagnosis capability and video transmission QoS ensuring capability.

The invention provides a method, a system and a device for activating SPS under the condition of losing PDSSH. User equipment (UE) receives a continuous scheduling retransmission command transmitted by an evolution base station (eNB) through the PDSSH, activates corresponding SPS service by the continuous scheduling retransmission command and calculates the starting time of the SPS service according to the transmitting time of the continuous scheduling retransmission command. In the invention, the UE can activate the continuous schedule according to the received retransmission scheduling command to rapidly realize continuous scheduling activation under the condition of losing the PDSSH, thereby solving the problem of mistaken continuous scheduling process caused by losing the PDSSH and preventing data transmission error and interference caused by losing a control command activating the continuous schedule.

The invention discloses an establishing method of a data radio bearer on an air interface. The method includes receiving an indication of integrity protection ability of the data radio bearer (DRB) sent by a relay node (RN); if the RN does not support the integrity protection of the DRB, establishing the DRB without the integrity protection with the RN or not establishing the DRB with the RN. According to the establishing method and a device, whether the RN supports the DRB integrity protection can be informed through a donor evolved node B (DeNB), therefore when the RN does not support the integrity protection ability of the DRB, the DRB without the integrity protection can be established with the RN, or the DRB cannot be established with the RN, and false data transmission on the DRB caused by inconsistent negotiation of the DeNB with the RN can be avoided.

The invention relates to a terminal self-adaption system and a self-adaption method of an access address for home services, which take a home service system as a basis. The terminal self-adaption method of the access address comprises the steps that: a back position detection server sends a position prompt message to a mobile terminal entering a back data communication network; the mobile terminal receives the position prompt message, searches a terminal database server, judges whether the mobile terminal enters the back data communication network or not, and acquires an access address of a back processing server; the mobile terminal sends an address change notification message to a preceding processing server through a preceding data communication network; the preceding processing server sends an address change confirmation message to the mobile terminal; and the mobile terminal receives the confirmation message sent by the preceding processing server and switches to the back processing server. The terminal self-adaption system and the terminal self-adaption method of the access address for home services can realize automatic changes of the access address of a service center.

The invention relates to a design and implementation method of a substation protocol conversion function. The ID mapping table of the virtual IED is configured under the IEC60870‑5‑103 protocol channel; a proxy IED is created in the IEC60870‑5‑103 protocol to realize the connection between the virtual IED and the virtual IED. The mapping relationship of IED; construct the proxy IED data transmission module in the IEC60870‑5‑103 protocol to realize the actual protocol data transmission with the monitoring system; design the timing distribution module of the IEC60870‑5‑103 protocol to integrate the communication between the monitoring system and the on-site IED The data is regularly distributed to the proxy IED for processing; data transmission during protocol conversion is realized. The invention avoids the configuration of the sending table or the information point table, reduces the occupation of data resources, can avoid the problem of data transmission error caused by the wrong configuration of the sending table, greatly improves the transmission efficiency, and satisfies the requirements of the monitoring system for different on-site IEDs in the substation. Data collection and monitoring realizes the unification and compatibility of communication protocols and communication methods, which is conducive to realizing the interchangeability and interoperability of equipment in the substation automation system.

The invention provides a safety emergency drilling method and system for a cloud computing platform, and belongs to the technical field of computer information. The method comprises the steps of calling production environment data from a cloud computing platform; setting parameters according to the production environment data to generate emergency drill data; according to the emergency drill data,configuring drill parameters in a scene basic class model stored in a system database, and meanwhile, generating an emergency scene by utilizing a scene setting script; distributing the drilling parameters to various terminals, and providing parameter information, text information and video voice information related to drilling for the various terminals and drilling personnel; and uploading process data and result data generated by the safety emergency drilling system in the drilling process to a cloud computing platform after drilling. The system comprises modules corresponding to the stepsof the method.

A method and device for eliminating interference and a smart television set. The method comprises: determining whether an interference pulse exists in a current inter-integrated circuit (IIC) bus when sensing a read / write data instruction (S10); monitoring in real time a serial data (SDA) bus pulse and a clock pulse of the IIC bus when an interference pulse exists in the current IIC bus (S20); and adjusting the voltage of the clock pulse when the SDA bus pulse and the clock pulse satisfy a predetermined condition (S30). Voltage adjustment for a clock pulse when an interference pulse exists in an IIC bus is implemented, thereby avoiding the problem of data transmission error between an external apparatus and a main chip of a smart television set caused by a change in a start or stop condition of an IIC bus protocol due to a change in an SDA bus pulse and the clock pulse because of the interference pulse; and data transmission of the IIC bus is ensured by correcting the high-low level of the clock pulse.